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Date: Thu, 27 May 2010 13:53:55 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
Message-ID: <20100527105355.GA7313@redhat.com>
References: <1274955749-20689-1-git-send-email-Jes.Sorensen@redhat.com>
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Subject: [Qemu-devel] Re: [PATCH] vhost_net.c: v2 Fix build failure
	introduced by 0bfcd599e3f5c5679cc7d0165a0a1822e2f60de2
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To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: blauwirbel@gmail.com, qemu-devel@nongnu.org

On Thu, May 27, 2010 at 12:55:49PM +0200, Jes Sorensen wrote:
> On 05/27/10 12:44, Michael S. Tsirkin wrote:
> > On Thu, May 27, 2010 at 12:22:29PM +0200, Jes.Sorensen@redhat.com wrote:
> >> From: Jes Sorensen <Jes.Sorensen@redhat.com>
> >>
> >> Fix build failure introduced by 0bfcd599e3f5c5679cc7d0165a0a1822e2f60de2
> >>
> >> The format statement expects unsigned long on x86_64, but receives
> >> unsigned long long, so gcc exits with an error.
> >>
> >> Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
> > 
> > I think this part of 0bfcd599e3f5c5679cc7d0165a0a1822e2f60de2
> > should just be reverted. We have unsigned long, it should be printed
> > woith %ll. Casting to uint64_t just so we can print with PRIu64 seems silly.
> 
> That is an option too. Problem is just that unsigned long is 32 bit on
> 32 bit systems and Windows (even for 64 bit) so if we need more flags we
> need to be careful with it.
> 
> Cheers,
> Jes

I don't understand, sorry.
This field is unsigned long long, not unsigned long.
%ll will print unsigned long long
for any standard printf, whatever its length.

-- 
MST